利用白僵菌防治松毛虫,在我国南方几省是一种主要手段。但在生产技术上仍是采用土法固体发酵生产分生孢子,此法原材料消耗大,杂菌污染影响菌粉质量和操作人员健康。黑龙江省曾用液体发酵生产白僵菌芽生孢子,此法工艺简单,节省原材料,但芽生孢子不耐贮存。苏联于七十年代初采用一步法液体深层培养生产出分生孢子。为克服土法生产中的缺点。我们于1984—1986年开展了液体深层发酵生产分生孢子的研究工作,现将结果报告如下。 Beauveria bassiana control of pine caterpillars in several provinces in southern China is a major means. However, in the production technology is still the use of soil solid fermentation fermented conidia, this method consumes raw materials, bacterial contamination of bacterial powder quality and operator health. Heilongjiang Province has used liquid fermentation production Beauveria bassiana spores, this method is simple, saving raw materials, but the spores intolerant storage. The Soviet Union in the early seventies using one-step liquid deep culture to produce conidia. To overcome the shortcomings of indigenous production. We conducted a deep liquid fermentation of conidia from 1984 to 1986, and the results are reported below.